When speaking to promote change, resist the urge to attack the status quo or its supporters.
The only reason to give a speech is to promote change of some sort: a change in how people think or feel or, more importantly, act.
If you’re happy with the status quo and you want people to keep on doing what they’ve been doing, don’t give a speech. Throw a party.
The underlying message of a speech promoting change always comes down to this: the new vision, initiative, product, service, behavior you’re proposing is better that what already exists.
How do you talk down the status quo without belittling those who had a part in bringing it about or who have a stake in maintaining it?
(When the status quo is clearly unjust, cruel, or oppressive, it may be honorable and brave to confront head on those who created and seek to perpetuate it.)
But in most cases assailing the supporters of the status turns them into opponents and hardens their resistance.
Do this instead. Demonstrate how the current problems or deficiencies–the status quo you wish to change–are rooted not in past mistakes but in subsequent changes.
Don’t say, “We’re having problems in the finance department because my predecessor [the current CFO] purchased an inferior accounting software program.”
Say something like, “When we purchased our current accounting software, it was highly rated. But in the intervening years, technological advances and our increasingly complex requirements have made it inadequate for our needs.”